UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS

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2022-07-01 16:28

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Conference: Bucharest University Faculty of Physics 2019 Meeting


Section: Theoretical Physics and Applied Mathematics


Title:
Tachyons in teleparallel gravity with nonminimal boundary couplings


Authors:
Sebastian BAHAMONDE (1), Mihai MARCIU (2), Jackson LEVI SAID (3)


*
Affiliation:
1) Laboratory of Theoretical Physics, Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411 Tartu, Estonia;

Department of Mathematics, University College London, Gower Street, London, WC1E 6BT, United Kingdom;

School of Mathematics and Physics, University of Lincoln, Brayford Pool, Lincoln, LN6 7TS, United Kingdom and

University of Cambridge, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom

2) Faculty of Physics, University of Bucharest, Romania

3) Institute of Space Sciences and Astronomy, University of Malta, Msida, MSD 2080, Malta and Department of Physics, University of Malta, Msida, MSD 2080, Malta


E-mail
sbahamonde@ut.ee, sebastian.beltran.14@ucl.ac.uk


Keywords:
Tachyons


Abstract:
In this work we show that the tachyons in teleparallel gravity with nonminimal boundary couplings represent a possible dark energy cosmological model which can explain the current acceleration of the Universe. By using linear stability method, we discuss the effects of nonminimal couplings into the phase space structure, analyzing the cosmological validity of such an exotic model. Our presentation is based on our recent paper [1].


References:

[1] Sebastian Bahamonde, Mihai Marciu, Jackson Levi Said, Generalized Tachyonic Teleparallel cosmology, Eur. Phys. J. C (2019) 79: 324.